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Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)

Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 34

An illustration from Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor, 1866, leaf 34
can be opened aconsiderable width by the joint, whilst in fig. 47, theopening is limited, the two blades or legs being formedout of one solid piece of steel, and tempered so as toform a spring at the upper part; the spring of the twoblades is then kept in obedience by an adjusting screwD, by which… … 14 DRAWING INSTRUMENTS.

Mechanical drawing · Architectural drawing · Projection · Perspective

Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.

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